Information transmission method, radio equipment controller, radio equipment, and base station

Abstract

Embodiments of the present invention provide an information transmission method, a radio equipment controller, a radio equipment, and a base station. The method includes determining, by an REC, that a main line used for communication with a first radio equipment RE is faulty and determining, by the REC, a standby line used for communication with the first RE. The method also includes communicating with the first RE by using the standby line.

What is claimed is: 
     
       1. A radio equipment controller (REC), comprising:
 a processor; and 
 a non-transitory computer readable storage medium storing a program for execution by the processor, the program including instructions to:
 send, through a power cable port or through a common public radio interface (CPRI) port, an addressing request message specific to a first radio equipment (RE); 
 receive at least one addressing response message from the first RE; 
 determine that a main line used by the REC to communicate with the first RE is faulty according to a path of an addressing response message sent by the first RE; 
 determine a standby line used by the REC to communicate with the first RE according to the path of the at least one addressing response message; and 
 communicate with the first RE using the standby line; 
 
 wherein the main line is a common public radio interface (CPRI) communications line, and wherein the standby line is a power cable line or a power cable plus CPRI communications line. 
 
     
     
       2. The REC according to  claim 1 , wherein the instructions further comprise instructions to:
 send, through a CPRI port or through a power cable port and a CPRI port, an addressing request message specific to controlled REs; 
 receive an addressing response message from at least one RE, wherein the at least one RE comprises the first RE; 
 determine that the main line used for communication with the first RE is faulty, in response to a path of at least one addressing response message from the first RE not comprising the main line; and 
 determine, according to the path of the at least one addressing response message, the standby line used for communication with the first RE, in response to the path of the at least one addressing response message from the first RE not comprising the main line. 
 
     
     
       3. The REC according to  claim 2 , wherein the instructions further comprise instructions to:
 send, through the CPRI port and the power cable port, the addressing request message specific to the controlled REs, in response to an RE that belongs to a same power cable network as the REC exists in the controlled REs; and 
 send, through the CPRI port or through the CPRI port and the power cable port, the addressing request message specific to the controlled REs, in response to an RE that belongs to a same power cable network as the REC does not exist in the controlled REs. 
 
     
     
       4. The REC according to  claim 2 , wherein the instructions further comprise instructions to:
 determine that a path of an addressing response message received from the first RE is the standby line used for communication with the first RE. 
 
     
     
       5. The REC according to  claim 1 , wherein the instructions further comprise instructions to:
 send, through the power cable port or through the CPRI port and the power cable port, the addressing request message specific to the first RE, in response to the REC and the first RE belonging to a same power cable network; and 
 send, through the CPRI port or through the CPRI port and the power cable port, the addressing request message specific to the first RE, in response to the REC and the first RE not belonging to a same power cable network. 
 
     
     
       6. A radio equipment (RE), comprising:
 a processor; and 
 a non-transitory computer readable storage medium storing a program for execution by the processor, the program including instructions to:
 receive, through a first port, an addressing request message sent by a radio equipment controller (REC), wherein the first port is an uplink common public radio interface (CPRI) port or a power cable port; 
 determine, according to the addressing request message, that an object that the addressing request message is specific to comprises the RE; 
 send a first addressing response message to the REC through the first port and with a path indicating whether a main line of the RE is faulty; and 
 determine, according to the addressing request message, that the object that the addressing request message is specific to further comprises another RE; and 
 forward, through a downlink CPRI port and a power cable port, the addressing request message, in response to the first port being the CPRI port and further in response to determining, according to the addressing request message, that the object to which the addressing request message is specific further comprises another RE. 
 
 
     
     
       7. The RE according to  claim 6 , wherein the instructions further comprise instructions to:
 add information about a forwarding path at the RE to the addressing request message before forwarding the addressing request message; 
 receive, through the downlink CPRI port or through the power cable port, a second addressing response message, after forwarding the addressing request message, wherein the second addressing response message carries a message of the forwarding path at the RE; and 
 forward the second addressing response message according to the information about the forwarding path at the RE. 
 
     
     
       8. The RE according to  claim 6 , wherein the instructions further comprise instructions to:
 receive, through the downlink CPRI port or the power cable port, a second addressing response message; and 
 forward, through an uplink CPRI port, the second addressing response message. 
 
     
     
       9. The RE according to  claim 6 , wherein the addressing request message carries information about a forwarding path from the REC to the RE, and wherein the instructions further comprise instructions to:
 add, to the first addressing response message, the information about the forwarding path from the REC to the RE, so the first addressing response message is returned to the REC according to a reverse path of the addressing request message, before sending the first addressing response message to the REC. 
 
     
     
       10. A method, comprising:
 sending, through a power cable port or through a common public radio interface (CPRI) port, an addressing request message specific to a first radio equipment (RE); 
 receive at least one addressing response message from the first RE; 
 determining, by a radio equipment controller (REC), that a main line used for communication with the first RE is faulty according to a path of an addressing response message sent by the first RE; 
 determining, by the REC, a standby line used for communication with the first RE according to the path of the at least one addressing response message; and 
 communicating, by the REC with the first RE, using the standby line; and 
 wherein the main line is a common public radio interface (CPRI) communications line, and wherein the standby line is a power cable line or a power cable plus CPRI communications line. 
 
     
     
       11. The method according to  claim 10 , wherein determining that the main line used for communication with the first RE is faulty comprises:
 sending, by the REC, an addressing request message specific to controlled REs through a CPRI port or through a power cable port and a CPRI port; 
 receiving, by the REC, an addressing response message from at least one RE, wherein the at least one RE comprises the first RE; and 
 determining, by the REC, that the main line used for communication with the first RE is faulty, in response to a path of at least one addressing response message from the first RE not comprising the main line; and 
 wherein determining that the standby line used for communication with the first RE comprises determining, by the REC according to the path of the at least one addressing response message, the standby line used for communication with the first RE, in response to the path of the at least one addressing response message from the first RE not comprising the main line. 
 
     
     
       12. The method according to  claim 11 , wherein sending the addressing request message specific to the controlled REs comprises:
 sending, by the REC, the addressing request message specific to the controlled REs through the CPRI port and the power cable port, in response to an RE that belongs to a same power cable network as the REC existing in the controlled REs; and 
 sending, by the REC, the addressing request message specific to the controlled REs through the CPRI port or through the CPRI port and the power cable port, in response to an RE that belongs to a same power cable network as the REC not existing in the controlled REs. 
 
     
     
       13. The method according to  claim 11 , wherein determining the standby line used for communication with the first RE comprises:
 determining, by the REC, that a path of an addressing response message received from the first RE is the standby line used for communication with the first RE. 
 
     
     
       14. The method according to  claim 10 , wherein sending the addressing request message specific to the first RE comprises:
 sending, by the REC, the addressing request message specific to the first RE through the power cable port or through the CPRI port and the power cable port, in response to the REC and the first RE belonging to a same power cable network; and 
 sending, by the REC, the addressing request message specific to the first RE through the CPRI port or through the CPRI port and the power cable port, in response to the REC and the first RE not belonging to a same power cable network. 
 
     
     
       15. The method according to  claim 10 , wherein determining the standby line used for communication with the first RE comprises:
 determining, by the REC, that a path of an addressing response message received from the first RE is the standby line used for communication with the first RE.